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INVENTORY
6 Months Ended
Apr. 30, 2019
Inventory, Net [Abstract]  
INVENTORY INVENTORY
 
April 30,
2019
 
October 31,
2018
 
(in millions)
Finished goods
$
290

 
$
283

Purchased parts and fabricated assemblies
370

 
336

Total inventory
$
660

 
$
619


Inventory-related excess and obsolescence charges recorded in total cost of products were $13 million and $11 million for the six months ended April 30, 2019 and 2018, respectively. We record excess and obsolete inventory charges for inventory at our sites as well as inventory at our contract manufacturers and suppliers, where we have non-cancellable purchase commitments.